Issue 17, 2024

Opportunities and challenges in perovskite–organic thin-film tandem solar cells

Abstract

Efficiency is paramount in enhancing the performance and cost-effectiveness of solar cells. Recent advancements in single-junction perovskite solar cells (PSCs) have yielded an impressive efficiency of 26.1%, nearing their theoretical limit. Meanwhile, multi-junction tandem solar cells exhibit a remarkable efficiency potential exceeding 42%, surpassing the 33% limit of single-junction cells, thereby opening avenues for ultra-high-efficiency solar cells. Tandem solar cells (TSCs) represent a groundbreaking photovoltaic technology, offering high efficiency, low cost, and a simple fabrication process. Among various TSCs, perovskite–organic TSCs (PO TSCs) are particularly promising due to their ability to leverage the complementary strengths of PSCs and organic solar cells (OSCs). PO TSCs are poised to outperform existing TSCs in terms of device performance, manufacturing cost, and diverse applications. The introduction of Y6-series non-fullerene acceptors (NFAs) over the past three years has significantly advanced the development of OSCs, leading to remarkable progress in PO TSCs. This paper commences by elucidating the advantages and potential of OSCs as bottom sub-cells in PO TSCs, followed by an in-depth review of mainstream interconnection layer (ICL) design. It then addresses key challenges in wide bandgap PSCs, including phase segregation, photovoltage loss, energy loss, and long-term stability. The paper concludes by examining critical factors influencing the future development of PO TSCs.

Graphical abstract: Opportunities and challenges in perovskite–organic thin-film tandem solar cells

Article information

Article type
Minireview
Submitted
26 Dec. 2023
Accepted
08 Marts 2024
First published
03 Apr. 2024
This article is Open Access
Creative Commons BY-NC license

Nanoscale, 2024,16, 8307-8316

Opportunities and challenges in perovskite–organic thin-film tandem solar cells

X. Meng, Z. Jia, X. Niu, C. He and Y. Hou, Nanoscale, 2024, 16, 8307 DOI: 10.1039/D3NR06602A

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